* {
  margin: 0;
  padding: 0;
  -webkit-box-sizing: border-box;
  font-size: 12px;
  color: #000;
}
body,
ul,
li,
h5,
p {
  padding: 0;
  margin: 0;
  font-family: "Microsoft YaHei", Helvetica;
}
body,
html,
.con {
  width: 100%;
  height: 100%;
  position: relative;
}
em,
i,
b,
a {
  font-style: normal;
}
li {
  list-style: none;
  display: block;
}
.courselist {
  width: 1148px;
  margin-top: 40px;
  margin: auto;
}
.title {
  height: 352px;
  width: 1148px;
  /*border: 1px solid #ccc;*/
  position: relative;
  box-shadow: -1px -3px 11px #d9d9d9;
}
.title dl {
  margin: 15px;
}
.title dl dt img {
  width: 503px;
  height: 322px;
  float: left;
  margin-right: 42px;
}
.title .share {
  position: absolute;
  right: 30px;
  top: 29px;
  z-index: 99;
}
.title dl dd h4 {
  margin-top: 30px 0 50px 0;
}
.title dl dd p {
  line-height: 24px;
}
.title dl dd h5 {
  /*float: left;*/
  display: inline-block;
}
.title dl .title_coursetime {
  margin-top: 47px;
}
.title_teacher {
  margin-bottom: 14px;
}
.title_money {
  margin-top: 46px;
}
.money {
  font-size: 26px;
  color: #309d92;
}
.title dl button {
  display: inline-block;
  width: 200px;
  height: 52px;
  color: #fff;
  border: none;
  background: #309d92;
  margin-top: 64px;
  font-size: 14px;
}
.course_content {
  width: 1148px;
  margin: auto;
  margin-top: 28px;
}
.course_content .course {
  width: 843px;
  float: left;
  height: auto;
  box-shadow: -1px -3px 11px #d9d9d9;
}
.course_nav {
  padding-left: 30px;
  height: 46px;
  line-height: 46px;
  border-bottom: 1px solid #d8d8d8;
}
.course_nav li {
  float: left;
  padding: 0 10px;
}
.course_nav li a {
  color: #000;
  text-decoration: none;
  display: inline-block;
  height: 46px;
}
.course_nav li a:hover {
  border-bottom: 4px solid #309d92;
  color: #309d92;
}
.course_nav li a.hover {
  border-bottom: 4px solid #309d92;
  color: #309d92;
}
.course_content .instructor {
  width: 273px;
  height: auto;
  float: right;
  box-shadow: -1px -3px 11px #d9d9d9;
  border: 1px solid #f3f3f3;
}
.course_overview {
  margin-top: 32px;
}
.course_overview_right {
  margin-left: 40px;
}
.course_overview_right p {
  line-height: 24px;
}
.course_overview_right h5 {
  height: 68px;
  font-size: 15px;
  color: #000;
  line-height: 68px;
}
.course_overview_right p {
  color: #77787b;
}
.course_overview_right_p1 {
  margin-bottom: 29px;
}
.course_overview_right ul li {
  line-height: 30px;
}
.course_overview_right ul li a {
  color: #77787b;
}
.instructor .course_nav {
  padding-left: 26px;
  height: 46px;
  line-height: 46px;
  border-bottom: 1px solid #d8d8d8;
}
.instructor dl {
  margin: 30px;
}
.instructor dt {
  float: left;
  width: 66px;
  height: 66px;
  margin-right: 17px;
}
.instructor dd p {
  color: #66686b;
  padding-top: 10px;
}
.instructor dt img {
  width: 66px;
  height: 66px;
}
.course_list_list {
  margin-left: 40px;
}
.course_list_list p {
  height: 24px;
  line-height: 24px;
}
.course_list_list p span {
  color: #24272d;
  padding-left: 14px;
}
.course_list_list h5 {
  display: inline-block;
}
.course_list_list li {
  line-height: 36px;
  height: 36px;
}
.course_list_list li a {
  color: #3e4045;
  font-size: 14px;
}
.course_list_list li span {
  float: right;
  padding-right: 26px;
}
.course_list_list li span i {
  font-size: 12px;
  color: #989898;
}
.course_list_list li span a {
  color: #32ab9e;
  padding-left: 11px;
}
